Figure 1.

Spoligoforest of tuberculosis cases in Acapulco, Mexico. Nodes are labeled with the ST identifier as indicated in SoplDB4 [3], with the cluster size enclosed in parentheses. Spoligotype not in SpolDB4 was labeled as “Mx” with a number. The size of each node increases as a function of the number of isolates (size of the cluster); the lines among the nodes reflect the evolutionary relationships among spoligotypes with arrows that denote the descendent. If the weight of the line was equal to 1, we drew a solid line; if the weight was greater than or equal to 0.5 but less than 1, we used a dashed line; if the weight was less than 0.5, we used a dotted line.